The reason an iPhone won’t ring on incoming calls is that the user turned on the Do Not Disturb feature by accident. Do Not Disturb mutes all calls, alerts, and notifications on an iPhone.
To fix an iPhone that won’t ring, you can restart your iPhone, check the silent switch, turn up the ringer volume, or turn off do not disturb.
To restart your iPhone:
- Press and hold the power button for a few seconds.
- Wait until you see Slide to Power Off appear on your screen.
- Swipe the Slide to Power Off slider.
- Press the power button again and wait for your device to turn on.
- Check to see if the iPhone rings by calling your number (using another phone).
Check the Silent Switch
There is a switch on the side of your iPhone that enables or disables sound. To check:
- Look at the side of your iPhone and check if there’s an orange stripe on your Ring/Silent switch.
- If you do see an orange stripe, then your iPhone is set to silent.
- Flip the switch so that you no longer see the orange stripe.
- The iPhone is now in ringer mode and should alert you on calls and notifications.
Increase Ringer Volume
To increase the volume of calls, notifications, and other media on your iPhone:
- Use the volume buttons on the side of your iPhone to turn up the volume.
- Test to verify that your iPhone rings.
You can also turn up the ringer volume by opening Settings -> Sounds & Haptics. Drag the slider under Ringer And Alerts to the right to increase the ringer volume on your iPhone.
Turn Off Do Not Disturb
To know if Do Not Disturb is turned on, look in the upper right-hand corner of your iPhone. If Do Not Disturb is enabled, you’ll see a small moon icon to the left of the battery icon.
To turn off Do Not Disturb open Control Center by swiping down from the upper right-hand corner of the screen. Tap the moon icon to turn off Do Not Disturb.
Or, go to Settings -> Do Not Disturb and disable the switch next to Do Not Disturb. Do Not Disturb is off when the switch is white.